Valve cover for a motorcycle engine



FIG. 1 is a perspective view of a valve cover for a motorcycle engine embodying our new design with a portion of a motorcycle shown in dotted lines;

FIG. 2 is a top plan view;

FIG. 3 is a right side view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a bottom plan view thereof, the dotted line representations form no part of the claimed design. 

The ornamental design for a valve cover for a motorcycle engine, as shwon and described. 